<template>
	<view>

		<view class="goods_container">
			<!-- 轮播图区域 -->
			<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
				<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
					<image :src="item.pics_big" @click="preview(i)"></image>
				</swiper-item>
			</swiper>
			<!-- 商品信息区域 -->
			<view class="goods-info-box">
				<!-- 商品价格 -->
				<view class="price">
					￥{{goods_info.goods_price}}
				</view>
				<!-- 商品介绍 -->
				<view class="goods_info_body">
					<view class="goods_name">
						{{goods_info.goods_name}}
					</view>
					<view class="goods_collection">
						<uni-icons type="star" size="18" color="gray"></uni-icons>
						<text>收藏</text>
					</view>
				</view>
				<!-- 运费 -->
				<view class="yf">快递：免运费</view>
				<rich-text :nodes="goods_info.goods_introduce"></rich-text>
			</view>
		</view>
		<view class="goods_nav">
			<!-- fill 控制右侧按钮的样式 -->
			<!-- options 左侧按钮的配置项 -->
			<!-- buttonGroup 右侧按钮的配置项 -->
			<!-- click 左侧按钮的点击事件处理函数 -->
			<!-- buttonClick 右侧按钮的点击事件处理函数 -->
			<uni-goods-nav :fill="true" @click="onclick" @buttonClick="buttonClick" :options="options"
				:buttonGroup="buttonGroup" />
		</view>
	</view>

</template>
<script>
	import {mapState,mapMutations,mapGetters} from 'vuex' 
	export default {
		computed: {
			// ...mapState('模块的名称', ['要映射的数据名称1', '要映射的数据名称2'])
			...mapGetters('m_cart', ['total']),
		},
		data() {
			return {
				goods_info: {},
				// 左侧按钮组的配置对象
				options: [{
					icon: 'shop',
					text: '店铺'
				}, {
					icon: 'cart',
					text: '购物车',
					info: ''
				}],
				// 右侧按钮组的配置对象
				buttonGroup: [{
						text: '加入购物车',
						backgroundColor: '#ff0000',
						color: '#fff'
					},
					{
						text: '立即购买',
						backgroundColor: '#ffa200',
						color: '#fff'
					}
				]
			};
		},
		onLoad(options) {
			console.log(this.total)
			const goods_id = options.goods_id
			this.getGoodsDetail(goods_id)
		},
		methods: {
			...mapMutations('m_cart', ['addToCart']),
			onclick(e) {
				if (e.content.text === '购物车') {
					uni.switchTab({
						url: '/pages/cart/cart',
					})
				}
			},
			buttonClick(e) {
				console.log(this.goods_info)
				if (e.content.text === '加入购物车') {
					// 2. 组织一个商品的信息对象
					const goods = {
						goods_id: this.goods_info.goods_id, // 商品的Id
						goods_name: this.goods_info.goods_name, // 商品的名称
						goods_price: this.goods_info.goods_price, // 商品的价格
						goods_count: 1, // 商品的数量
						goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
						goods_state: true // 商品的勾选状态
					}
					this.addToCart(goods)
				}
			},
			// 定义请求商品详情数据的方法
			async getGoodsDetail(goods_id) {
				const {
					data: res
				} = await uni.$http.get('/api/public/v1/goods/detail', {
					goods_id
				})
				if (res.meta.status !== 200) return uni.$showMsg()
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,
					'<img style="display:block;" ').replace(
					/webp/g, 'jpg')
				// 为 data 中的数据赋值
				this.goods_info = res.message
			},
			preview(i) {
				// 调用 uni.previewImage() 方法预览图片
				uni.previewImage({
					// 预览时，默认显示图片的索引
					current: i,
					// 所有图片 url 地址的数组
					urls: this.goods_info.pics.map(x => x.pics_big)
				})
			}
		},
		watch: {
		   // 定义 total 侦听器，指向一个配置对象
		   total: {
		      // handler 属性用来定义侦听器的 function 处理函数
		      handler(newVal) {
		         const findResult = this.options.find(x => x.text === '购物车')
		         if (findResult) {
		            findResult.info = newVal
		         }
		      },
		      // immediate 属性用来声明此侦听器，是否在页面初次加载完毕后立即调用
		      immediate: true
		   }
		}
	}
</script>
<style lang="scss">
	.goods_container {
		padding-bottom: 50px;

		swiper {
			height: 750rpx;
			border-bottom: 1px solid #f0f0f0;

			image {
				width: 100%;
				height: 100%;
			}
		}

		.goods-info-box {
			padding: 10px 20px;

			.price {
				color: red;
			}

			.goods_info_body {
				display: flex;
				justify-content: space-between;
				margin-top: 10rpx;

				.goods_name {
					font-size: 13px;
					width: 590rpx;
				}

				.goods_collection {
					color: gray;
					font-size: 12px;

					uni-icons {
						width: 24px;
					}
				}
			}
		}
	}

	// 运费
	.yf {
		margin: 10px 0;
		font-size: 12px;
		color: gray;
	}

	// .goods_nav {
	// 	position:;
	// 	width: 100%;
	// 	bottom: 0;
	// 	left: 0;
	// }
	.goods_nav {
		position: fixed;
		left: 0;
		bottom: 0;
		height: 50px;
		width: 750rpx;

		uni-goods-nav {
			height: 100%;
			width: 100%;

		}
	}
</style>